Heat a pan over medium heat. Melt butter and sauté minced garlic until fragrant.
Add shrimp and stir-fry for about 2 minutes, or until the shrimp turn orange.
Pour in the Sprite, then add soy sauce, ketchup, brown sugar, cumin powder, oyster sauce, and ground pepper. Mix well.
Continue cooking for 3 minutes, then remove the shrimp and set aside.
Allow the sauce to simmer, stirring occasionally, until it thickens.
Return the shrimp to the pan, toss well in the thickened sauce, and sprinkle with chopped onion leaves before serving.
